Beyours 3.5mm femal to 3.5mm female Stereo Jack Coupler gold-plated metal 3.5mm audio adapter-gold color 3.5mm female to female stereo couplers are used to connect two stereo cables together to make a longer cable Gold-plating resists corrosion and ensures minimal signal loss Good for extending connections or making conversions from one plug to another. This product is sold by Beyours brand,please pay attention to our logo when you got the package.